In the past inventory was handled by people using markers to mark each item, numbering them, putting dates, etc. This used to take a lot of time & energy. Now with the help of barcode system inventory is managed easily and without any hassle. In most of the cases, whenever the item is being packed, there is a barcode sticker placed on it. Barcode system can be related to the strips of a zebra or your finger prints. They all look the same, but they aren’t. Similarly barcode printers print in such a way that any combination of barcodes is not repeated. The process is simple, a package with a barcode sticker is placed on a conveyor, which goes through a scanner, & the scanner reads the barcode & then transfers the information to the computer, which makes a database for this inventory. So now if anybody needs any kind of information about an item e.g. when was it purchased? Or who is the supplier? Then this answer can be obtained with just a mouse click .Lesser time & work force is required for this whole process. These automation systems have helped various companies to increase their productivity and save long and short term cost.